Abstract: The communication link is the data channel between the spacecraft and the ground station, and data security is very important for spacecraft. Space communication of spacecraft has the characteristics of long link and large amount of data, which is easy to be interfered. A packet telemetry strategy of consultative committee for space data system is presented for spacecraft space communication, and combined with space communication protocol specification, a method for communication between spacecraft space network and ground station is designed. Through the experimental verification in the space communication link, this method can acquire and analyze the telemetry data from the space communication network. Besides, modular software design of the method can be easily transplanted in a variety of spacecraft models.

Key words: CCSDS, packet telemetry, SPCS, modularity